Conundrum Quartz Gemstone & Information | Gemopedia by JTV | Gemopedia™

Conundrum Quartz

While rock crystal quartz is easily identifiable, conundrum quartz is called so because it contains a mysterious blend of up to 7 different types of mineral inclusions. Looking into this crystal, you may think that you're taking in a view from outer space! These unique gems are a treat to collectors with their varied, sundry mix of mineral inclusions creating a completely different look for each stone. Take a loupe or microscope to these gems, and explore the confounding menagerie within.

Colors

Colorless, Purple, Brown With Various Colored Inclusions

  • Conundrum-quartz classification

    CommonName
    Conundrum Quartz
    Species
    Quartz
    Variety
    Conundrum Quartz
    Colors
    Colorless, Purple, Brown With Various Colored Inclusions
    AlternateNames
    Sagenitic Quartz
    GemstoneGroups
    KeySeparations
    Refractive index, appearance, birefringence, optic character and optic figure. A bull's-eye optic figure is determinative for quartz; may also show Airy's spiral optic figure and Brazil-law twinning under crossed polarizing filters.
    ClassificationComments
  • Conundrum-quartz chemistry & crystallography

    ChemicalName
    silicon dioxide (aka silica)
    ChemicalFormula
    SiO2
    Synthesis
    CrystalSystem
    Trigonal
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Crystalline to Aggregate
    ChemistryComments
  • Conundrum-quartz optical properties

    Transparency
    Transparent - Translucent
    Dispersion
    Strength: weak fire Value: 0.013
    OpticalComments
    RefractiveIndex
    1.544-1.553
    Tolerance:very constant
    Birefringence
    0.009
    OpticCharacter
    Biaxial
    OpticSign
    Positive
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Conundrum-quartz characteristic physical properties

    Hardness
    7
    CharacteristicComments
    Streak
    White
    SpecificGravity
    2.64-2.69 Typical:2.66
    Toughness
    Good
    Inclusions
    Conundrum quartz can contian liquid, two-phase and three-phase inclusions, negative crystals, minerals, needles, rutile, iron particles, cacoxenite, goethite and hematite. Stones will contain multiple mineral inclusions.
    Luster
    Vitreous
    Stability
    Good
    Fracture
    Conchoidal
    Cleavage
    None